Avoid using uninitialised struct

Closes GH-12046.

Fix MySQL Statement has a empty query result when the response field has changed, also Segmentation fault

Closes GH-11551.

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Fixed bug #81494

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fixed bug #81494

Fixed bug #81494

Use the proper error reporting mechanism rather than throwing a
warning. This requires something of a hack because we don't have
direct access to the connection obje

Fixed bug #81494

Use the proper error reporting mechanism rather than throwing a
warning. This requires something of a hack because we don't have
direct access to the connection object at this point.

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Replace macro with inline function (#7365)

Fix mysqlnd debug formats on 32-bit

Fix printf formats in mysql debug logging

Enable printf format verification and fix the reported errors.

Update http->https in license (#6945)

1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as

Update http->https in license (#6945)

1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as 3.0 states "php 5.1.1, 4.1.1, and earlier".
3. In some license comments is "at through the world-wide-web" while most is without "at", so deleted.
4. fixed indentation in some files before |

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Replace zend_bool uses with bool

We're starting to see a mix between uses of zend_bool and bool.
Replace all usages with the standard bool type everywhere.

Of course, zend_bool

Replace zend_bool uses with bool

We're starting to see a mix between uses of zend_bool and bool.
Replace all usages with the standard bool type everywhere.

Of course, zend_bool is retained as an alias.

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Move fetch_all implementation out of mysqlnd

There doesn't seem to be any compelling reason to implement this
in mysqlnd rather than mysqli. It's just a loop over fetch_into.

Th

Move fetch_all implementation out of mysqlnd

There doesn't seem to be any compelling reason to implement this
in mysqlnd rather than mysqli. It's just a loop over fetch_into.

This makes the function available under libmysqlclient as well,
and thus fixes bug #79372.

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MySQLnd: Clean up and optimize mysqlnd result set handling

This is a larger overhaul of the mysqlnd result set infrastructure:

* Drop support for two different types of buffered re

MySQLnd: Clean up and optimize mysqlnd result set handling

This is a larger overhaul of the mysqlnd result set infrastructure:

* Drop support for two different types of buffered results sets
("c" and "zval"). Possibly these made sense at some earlier
time, but now (with minor adjustments) one option is strictly
worse than the other. Buffered result sets already buffer the
full row packets, from which zvals can be decoded. The "zval"
style additionally also buffered the decoded zvals. As result
sets, even buffered ones, are generally only traversed once,
this just ends up wasting memory. Now, a potentially useful
variation here would be to buffer the decoded zvals instead of
the row packets, but that's not what the code was doing.
* To make it really strictly better, pre-allocate the zval row
buffer and reuse it for all rows. Previously the "c" style always
allocated a new buffer for each row.
* The fetch_row API now provides a populated zval[]. The task of
populating an array is deferred to fetch_row_into, which also
avoids duplicating this code in multiple places. The fetch_row_c
API is also implemented on top of fetch_row now, rather than
duplicating large parts of the code.
* The row fetching code for prepared statements and normal result
sets has been mostly merged. These already used the same
infrastructure, but prepared statements used separate row
fetching functions that were nearly the same as the normal ones.
This requires passing the stmt into the result set, rather than
just a flag. The only part that remains separate is reading of
unbuffered results in the presence of PS cursors.

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Drop support for max_length in mysqli_fetch_fields()

Retain the field, but always populate it with zero. This was
already the case for PS without length updating.

max_length has

Drop support for max_length in mysqli_fetch_fields()

Retain the field, but always populate it with zero. This was
already the case for PS without length updating.

max_length has nothing lost in the field metadata -- it is a
property of the specific result set, and requires scanning the
whole result set to compute. PHP itself never uses max_length
with mysqlnd, it is only exposed in the raw mysqli API.

Keeping it for just that purpose is not worthwhile given the costs
involved. People who actually need this for some reason can easily
calculate it themselves, while making it obvious that the
calculation requires a full result set scan.

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MySQLnd: Drop free_result_internal

Merge it into free_result. There is a large number of different
free_* functions for result sets, let's avoid having one more.
Only difference is t

MySQLnd: Drop free_result_internal

Merge it into free_result. There is a large number of different
free_* functions for result sets, let's avoid having one more.
Only difference is that it does not increment stats, and that
seems like a bug as free_stmt_result is still freeing a result.

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MySQLnd: Simplify management of zval row buffer

Something odd was being done here, with the row packet having a
flag for whether it should allocate the zval buffer, which would
then

MySQLnd: Simplify management of zval row buffer

Something odd was being done here, with the row packet having a
flag for whether it should allocate the zval buffer, which would
then get moved into the result set.

Keep the management of this buffer purely at the result set level.
This also allows us to easily reuse the same buffer for all results,
rather than allocating a new one for each fetch.

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Remove mysqlnd_extension enum

ext/mysql is no longer supported, drop handling for it from
mysqlnd.

MySQLnd: Remove unused fetch_field_data method

This method is not used, and is implemented in a very dubious
way.

Use zmm for row_c data

This API already doesn't match libmysqlclient, so we may as well
use the zmm.

mysqlnd_error_info_init() cannot fail

Remove more OOM checks

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fixed bug #76815

Fixed bug #76815

When we receive an error while reading a result set, we should
assume that no more result sets are available. libmysqlclient
implements the same behavior.

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Retain QUIT_SEND connection state

Retain QUIT_SEND connection state

If the server goes away while reading a packet, don't go back into
the READY state. This will just cause broken pipe errors down the
line.

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix bug #79375